EM Induction Flashcards
1
Q
How does electromagnetic induction happen?
A
1) Moving a magnet in a coil of wire
2) Wire cuts magnetic field lines
3) Induces current in wire
2
Q
In electromagnetic induction, what happens if you move the magnet backwards and forwards?
A
Creates an alternating current
3
Q
How do you reverse the current in electromagnetic induction?
A
1) move magnet in opposite direction
2) reverse polarity of magnet
4
Q
How do you increase the current in electromagnetic induction?
A
1) Faster movement
2) Increase magnet strength
5
Q
What is electromagnetic induction?
A
Creation of a PD across a conductor which is experiencing a change in magnetic field